Cal.com
Open-source scheduling infrastructure
Cal.com is the open-source alternative to Calendly with scheduling pages, team scheduling, workflows, and API. Self-hostable with full customization.
Panel Reviews
The Builder
Developer Perspective
“Open source and self-hostable scheduling with a great API. Webhooks and workflows enable custom booking flows.”
The Skeptic
Reality Check
“Why pay Calendly when Cal.com is open source? The feature set matches or exceeds Calendly for most use cases.”
The Futurist
Big Picture
“Scheduling infrastructure should be open. Cal.com is the open-source standard.”
Community Sentiment
“Cal.com API is actually well-documented, built our enterprise scheduling integration in two days”
“Self-hosted Cal.com with custom branding — Calendly wanted $20/mo per user, this cost us $5/mo total”
“The team scheduling and round-robin routing features are legit enterprise quality for an open-source tool”
“Finally a Calendly alternative that respects user data and lets you own your scheduling stack”